TW200407486A - Dyeing of cationic dyeable bi-constituent fiber with anionic or acid dyes - Google Patents

Abstract

Bi-constituent fibers having a cationic dyeable nylon, usually Type 6 nylon adequately sulfonated, as the major component with an intimate melt blend of a minor amount of a polyester are dyed with an anionic dye to improve lightfastness, ozone resistance and to provide resistance to acid-type stains. The fibers may be tufted into carpets that are resistant to acid-type stains. Both components of the bi-constituent fiber may come from recycled sources so that 100% of the fiber, excluding processing additives, is based on post consumer recycled polymer.

Description

200407486 Rose, description of the invention: I: Technical field of the inventor 3 The invention relates to dyeing and printing cationic dyeable bicomponent fibers with anionic dyes to improve the stain resistance and light resistance of nylon (especially nylon carpets) 5 Illumination and anti-ozone layer.

I: Previous technology J Anti-fouling nylon carpet is very popular in the market. The stain resistance imparted to nylon is typically treated as a solid fiber or in the form of a carpet by applying a chemical surface treatment agent as described in U.S. Patent Nos. 4,501,591, 4,592,940, and 4,839,212 to Monsanto. Of fibers. Nylon carpet fibers are generally classified according to their acceptance of acid dyes and basic or cationic dyes. The cationic dyeable nylon system contains enough S03H or C00H groups in the polymer structure (these groups can accept anionic or basic dyes), so that the nylon fiber can be dyed with an anionic dye. Acid-dyed nylons are basic traditional nylons, such as polycyclohexane (hexamethylenediamine) and polycaprolactam. Acid-dyeable nylons vary in form, and are characterized by being lightly dyed with acid dyes, evenly dyed with acid dyes, or re-stained with acid dyes. Compared to other nylon forms available for carpets, cationic 20 dyeable nylon exhibits its own resistance to staining, especially to acidic staining. Cationic dyeable nylon can be dyed with specific anionic dyes, but it has a poorer light resistance than other dyes that are dyed on acid dyeable nylon with monosulfonated or pre-metallized acid dyes, especially Light chroma. As a result, cationic dyeable nylon can only be used to a low degree as a 200400286 carpet fiber. The fiber itself has useful properties, including acid-resistant form of fouling, which makes it a charming carpet fiber that has not been fully understood before. [Summary of the Invention] 5 Bicomponent fiber is made of a cationic dyeable nylon, which is usually made of appropriately sulfonated acidified type 6 nylon as the main component, tightly melted and mixed with a small amount of a polyester. The two ingredients of the mixing can come from recycling resources, so that 100% of the fiber (except for processing additives) is mainly based on waste and then polymer recycling. 10 Use cationic dyeable nylon with its own resistance to acid form fouling, especially when used in carpets and floor coverings, and dyed with an anionic dye at an appropriate pH of about 2.0 to about 6.5 The advantages of this time are described in the earlier patent cases owned by the inventor, for example: 5,085,667, 5,199,958, 5,350,426, 5,354,342, 5,466,527, 5,466,527, 15 5,571,290, 5,912,409, and 6,013,111, and the disclosure content here Incorporated into this case as a reference. In addition to these advantages of stain resistance, light resistance, and multiple styles, the bicomponent fiber dyed or printed by the method of the present invention can provide a fiber based almost entirely on 100% recycled products. Acid or anionic dyeing of this fiber can increase the selectivity of the resulting carpet or upholstery. Masking any remaining positive-reaction dyeing positions with anionic or acid dyes can further enhance the acid-fouling resistance of these two-component fibers, mainly polymer-mixed sulfonylated nylon. By dyeing this fiber with an anionic dye, different color effects can be presented, such as: single color, short-distance printing or long-distance printing such as yarn 6 200407486 distance printing and other combinations, the resulting carpet has high height The color and pattern of the fiber cannot be achieved by coloring the fiber with a single to chromaticity colorant on the protruding portion. The produced yarn can be further strengthened to prevent the color from being damaged by the bleaching agent 5, for example, under the trade name of α⑽X⑧ sodium hypochlorite, “Cibatex”, CL for yarn post-treatment. Used in the present invention Bicomponent fibers, sometimes referred to as composite fibers, are manufactured by mixing polypropylene (pp) pellets or granules as a main ingredient with nylon or polyester (PET) chips and sending the mixture Into 10 melting devices (such as a fence in a hot melt extruder _ distributed mixing spiral). The resulting homogeneous mixture is pumped to a spinneret with multiple capillary holes. This is made The fiber is a polyester with in-situ (/ valent nylon fiber filaments, or polyester formed parallel to each polypropylene filament axis), and its characteristics are continuous and single 15 formed in a thermoplastic polypropylene matrix. Oriented nylon or polyester fibers. This process involves connecting or coupling polymers to produce a composite fiber. These fibers are described in a series of patents granted to William C Mallonee, which include: US Patent Case Number: 5 , 811, 〇4〇, 5,620,797, 5,597,650, and 5,587,118, the disclosures of which are incorporated herein as Cangkao materials. 20 Bicomponent fiber provides a cost significantly better than pure nylon carpet surface yarn Advantages' and the ability to use a considerable amount of waste (recycled) polyester and / or nylon. Polypropylene itself is difficult to dye; however, mixtures made of polypropylene / nylon are easy to dye, while polypropylene / polyester The composition of the composition is less likely to be dyed. 7 A preferred bicomponent fiber for use in the method of the present invention is nylon (e.g., nylon 6) as the main component, such as 55 to 95% by weight, and A small proportion (for example, 45 to 5% by weight) of polyester is used as a trace wound. The dual-group wound nylon / PET fiber can be made substantially or completely from waste (recycled) polymer. Sulfonated acidification Bicomponent fibers can produce a material that has a permanent acid-resistant form or anionic fouling in the form of a carpet or a pouch, and it retains the strength that can be dyed with these anionic dyes in the form of yarns .Color and color It is manufactured by dyeing bicomponent fibers with different color effects, such as: monochrome, short-pitch printing or long-pitch printing, or similar technologies that can produce high color and pattern carpet styles. If the bicomponent fiber is These effects are impossible to produce with a monochromatic chromaticity only when pressed, and coloring with a colorant (solution dyeing). The preferred bicomponent fiber used in the present invention is a (sulfonated) type 6 A tightly fused admixture of nylon and a polyester. The bicomponent fiber preferably has an irregular or non-circular cross-section, such as a star or bilobal cross-section. In the experience of the inventors However, when the bicomponent fiber is a majority polypropylene (for example, 70 to 85%) mixed with cationic dyeable nylon 6, it can be dyed with an anionic dye and can produce a dyeable base. Materials, however unfortunately it creates a lack of elasticity sufficient for shearing felt carpets or similar flooring installations. [Embodiment 3] The following test uses a fiber composed of approximately 70% of anionic dyeable type 6 nylon and 30% polyester (PET). The use of this combination results in better floor properties than these polypropylene compounds. This yarn is dyed into 3 kinds of single 200407486 one shade, a short-pitch dyeing and a long-pitch dyeing. Dye formulations and method descriptions are listed below. The following dye formulations are used to dye bicomponent fibers made of cationic dyeable nylon and polyester with anionic or acid dyes. Dye formula Gray-blue monochrome Dye paste: 0.0062% 0.234% 0.034% 0.4% 0.15% 0.15% .01-.20% dark blue-green monochrome Same as the above compound

Irgalan Red B 220% (Ciba)

Irgalan Blue 3GL200% (Ciba)

Erionyl Yellow MR 250 / a (Ciba)

Texwet 50-humectant

Sedgekill GGD-Antifoaming Agent Phosphate Monosodium Salt-pH 6.5 Guar Thickener, added to a final viscosity of 50 centipoise 0.0224% Irgalan Red B 220% (Ciba) 0.089% Erionyl Yellow MR 250 / a ( Ciba) 0.2425% Nylanthrene blue GLF 200% (Yorkshire) black and monochromatic as the above-mentioned compound, but it has edge 魃, pH value is 2.0. 0.10% Nylanthrene Tangerine 3G Powder 200% (Yorkshire) 0.051% Nylanthrene Red SBL Concentrate (Yorkshire) 4.758% Ricoamide Black RPL 50% Liquid (Rite Chemical) 200407486 The above colors are embossed to a immersion / kneading press. 100% wet pressure absorption, steam for 10 minutes (210 ° F saturated steam), wash and dry. It can take longer or shorter steaming time. The limiting factor is the shade of light color, which produces enough time to fix the dyeing. 5 Short-pitch dyed base color_light gold 0.018% Irgalan yellow 3RLKWL250% (Ciba) 0.25% Sedgekill GGD-antifoam agent 0.2% monosodium phosphate (MSP) -pH 6.5 0.125% Sedgemul NID-humectant. 15- .5% guar thickener, added to a final viscosity of 200 cps for printing 1 and 6 designs: green 0.02% Irgalan red BKWL200% (Ciba) 0.3% Erionyl yellow MR 250% (Ciba) 0.579% Nylanthrene blue GLF 200% (Yorkshire) Printed with the above compounds 2 and 4 Design: Blue 0.008% Irgalan Red BKWL200% (Ciba) 0.0096% Irgalan Black RBL200% (Ciba) 0.3% Erionyl Yellow MR 250% (Ciba) 0.579% Nylanthrene Blue GLF 200 % (Yorkshire) 10 Same as the above compound 10 200407486 Printing and dyeing 3 and 5 designs: red 0.286% Irgalan red B KWL 200% (Ciba) Same as the above compound base color is embossed on a knitted cylindrical garter, followed by individual Pattern design with engraved cylinder printing different colors. After applying the dye, the garter was steamed (210 ° F for 10 minutes). The garter was dyed with golden brown Sedgelev ACB 0.2 0.2 Erionyl yellow MR 250% 1.274 1.375 Irgalan red B KWL 200% 0.18 0.579 Ricoamide black RPL 50% liquid 0.144 0.97 Nylanthrene Blue GLF200%-— Dianex Red FBE 200%-— Disperite Blue SGBL-— Palanil Yellow 3GE 200%--Wash and then dry. Blue Green Blue Green 0.2 0.2 0.2 — 1.397-— 0.132 — 2.34 10.0 — 0.63-0.755 0.6-— 3.58 0.276 2.88 __ 1.414 0.48

This color is colored by a "Spectradye" unit. The 10 unit is composed of a color library consisting of 6 groups of color nozzles each containing a different color as described above. The spraying sequence and spraying time are controlled by a computer program, thereby sequentially generating dye sprays as the yarn passes through the nozzle. Program can be changed to change the pattern. The dye is added to a pattern length of 1 to 5 inches at 15% wet pressure absorption. After the color addition 11 200407486 plus, the yarn passed through a steam trough, and was then wound on a Superba conveyor belt, and then the conveyor belt passed through a tunnel cylinder set at 250 ° F, which lasted for 5 seconds. minute. The resulting yarn was then clustered into a 1/10 caliber loop and woven into a carpet at 2 different densities (8.5 stitches per inch and 9.6 stitches per US inch). Although the present invention has been described with reference to the specific examples that are currently considered to be the most feasible and preferred, it should be understood that the present invention is not limited to the specific examples disclosed, and on the contrary, the present invention is intended to include all patents pending application The precise meaning of the scope and the modifications and equality within the scope are grouped. 10 [Schematic description] (None) [Symbol table of main components of the diagram] (None) 12

Claims (1)

ϊ 200407486 Scope of patent application: 1. A method for dyeing bicomponent fiber, the bicomponent fiber is made up of a close compound of a cationic dyeable nylon and a polyester, the method includes: Below the acid test value of about 4.0 to about 6.5, the fiber is dyed with an acid dye or a 5 pre-metalized acid dye, and then the dye is fixed on the fiber. 2. A method for manufacturing a stain-resistant and light-resistant nylon carpet, the method comprising: dyeing an acid dye or a Jinlu pretreated acid dye below an acid test value of about 4.0 to about 6.5 Fiber, and then the dye is fixed on the fiber. 3. The method of claim 1 or 2, wherein the nylon fiber contains S03H and / or COOH groups that can accept anionic or basic dyes, and the amount is sufficient to make the anionic fiber be Stained by anionic or diagnostic dyes. 15 4. The method of claim 1 or 2, wherein the nylon fiber is dyed at a pH of about 4.0 to 6.0. · 5. The method according to item 1 or 2 of the patent application scope, wherein, after dyeing and fixing, a fluorinated carbonite waterproofing agent is applied to the fiber. 6. The method according to item 1 or 2 of the patent application, wherein a metal 20 pre-treated acid dye is used. 7. The method of claim 1 or 2, wherein the fiber is repeatedly printed with an acid dye or a metal pretreated acid dye to produce multiple color effects on the same yarn strand. 8. — A nylon carpet with improved stain resistance, which is composed of a bicomponent fiber 13 200407486 dimension, which is a compact mixture of a cationic dyeable nylon and a polyester It is composed and is dyed with an acid dye or a pre-metallized acid dye below an acid-base value of about 4.0 to 6.5. The pre-metallized acid dye is equivalent to the acid-dyeable nylon 5 Lightfastness is substantially the same at chromaticity. 9. A nylon carpet composed of a bicomponent fiber, the bicomponent fiber is composed of a tight blend of a cationic dyeable nylon and a polyester, and is pretreated with an acid dye or a metal Acid dyes are dyed to a predetermined shade of chroma under an acid-base value of about 4 to 6.5, compared to those of an anionic dye with a cationic dyeable nylon of similar shades. Carpets are resistant to acid stains and exhibit improved light resistance. 10. —A method for dyeing a two-component fiber, the two-component fiber is composed of a tight mixture of a cationic dyeable nylon and a polyester, the method 15 includes ... in a dyeing tank A fiber pre-treated acid dye is used to dye the fiber at a pH of about 2.0 to about 6.5, and then the dye is fixed on the fiber. 11. A method for preparing a stain-resistant and light-resistant nylon carpet, the method comprising: dyeing a metal-treated acid dye in a dyeing tank at a pH of about 2.0 to about 6.5 in a dyeing bath; and The two-component fiber composed of a tight blend of a cationic dyeable nylon and a polyester, and then the dye-laden fiber is heated to fix the dye into the fiber. 12. The method of claim 1 or claim 2, wherein the nylon fiber bag 14 200407486 contains an S03H and / or COOH group of an acceptable anionic or basic dye, and the amount is sufficient to make the anionic The fibers are dyed with an anionic or basic dye. 13. The method of claim 1 or 2, in which the fiber is repeatedly printed and dyed to produce multiple color effects on the same yarn strand. 14. The method of claim 1 or 2, wherein a fluorinated carbonite waterproofing agent is applied to the fiber after dyeing and fixing. 15. For the method of claim 1 or 2, the sodium sulfate is also present in the dyeing tank. 10 16. —A nylon carpet composed of a two-component fiber, which is a compact mixture of a cationic dyeable nylon and a polyester, and is pre-metalized with an acid Dyes, dyed below an acid value of about 2.0 to about 6.5, the carpet is resistant to fouling in acid form. 17. A 15-dimensional stain-resistant nylon fiber suitable for manufacturing improved stain-resistant carpets. The nylon fiber is basically composed of a two-component fiber made of a cationic dyeable nylon and It is a compact compound of polyester and is dyed with a pre-metallized acid dye at a pH of about 2.0 to about 6.5. 18. —A method for preparing a stain-resistant, multi-color, cationic dyeable 20 nylon blanket, the method comprises the following consecutive steps: (a) dye the bicomponent fibers at intervals, and the bicomponent fibers are made of A cationic dyeable nylon and a tight mixture of polyester, and is dyed with an acid dye or a pre-metallized acid dye at a pH of about 4.0 to about 6.5. Then, The dye is fixed on the fiber 15 200407486. The cationic dyeable nylon is dyed at different intervals along its length. (B) The fixed dye fiber is heated and fixed in step (a). The heating is performed in dry or very low humidity. Under the conditions, it is heated to a temperature of about 160 ° C to about 5 220 ° C, which is a time sufficient to fix the dye and make the fiber resistant to staining; (c) The heat-fixed yarn of step (b) and one Dyed cationic dyeable nylon clusters are woven into a carpet; and (d) 10 dyes of nylon can be dyed with a sufficient selectivity to dye only previously undyed cations without dyeing previously spaced, heat fixed cationic A number of nylon dyes or pre-metallized acid dyes can be dyed to dye the carpet made in step (c) to produce a stain-resistant carpet with multiple colors. 19. The method of claim 18, wherein a pre-metallized acid dye is used in step (a), step (d) 15 or both. 20. The method of claim 18, wherein a mono-acid dye is used in step (a), step (d), or both. 21. The method of claim 18, which includes the additional steps of: (e) applying a fluorocarbonite waterproofing agent to the carpet. 20 22. A kind of multi-color nylon woven shear felt carpet, which is composed entirely of bicomponent fibers. The bicomponent fibers are composed of a tight blend of a cationic dyeable nylon and a polyester. The carpet has improved stain resistance, and is dyed into two or more different shades with mono-acid or pre-metallized acid dyes, mixed and woven together with a different shade of 16 200407486. The dye or pre-metallized acid dye is dyed into a bicomponent fiber with a background degree of 1 degree. 17 i 200407486 (1) Designated representative map: (1) The designated representative map in this case is: (). (2) Brief description of the component representative symbols in this representative map: (none) 捌 If there is a chemical formula in this case, please disclose the chemical formula that can best show the characteristics of the invention: